7B's....me likey

Jonesy
Jonesy Posts: 189
edited May 2008 in Vintage Speakers
It's been about a month long trip but I've definatley signed onto the Vintage Polk train. It started with the daughter's donated 5jr's for her birthday system. Those led me to get into a set of 7B's for the basement. Now the stands are done and I am happy. Serious critical listening hasn't happened yet, but will occur soon, hopefully. From what I've heard so far.....there's no comparison for the money. They are on a Rotel 971 right now and they sound great. The Rotel will soon be replaced by a Carver pro model and I am looking forward to hearing the difference. Regardless, I am excited as they sound fantastic.....here are some preliminary pics.....

Also, I assume the tweeters are the Peerless from what I've read here. I'm hoping to confirm that. As a note the stands have a 3 degree tilt, as per instructions I found on this forum. Thanks to those who contributed their plans.
Post edited by Jonesy on
· Share on FacebookShare on Twitter

Comments

  • Jonesy
    Jonesy Posts: 189
    edited April 2007
    Here's the tweeter...
    · Share on FacebookShare on Twitter
  • danger boy
    danger boy Posts: 15,722
    edited April 2007
    Nice going there.. the 7B's look minty, the stands look great.. it may just become your favorite system in the house now. ;)
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
    · Share on FacebookShare on Twitter
  • engtaz
    engtaz Posts: 7,664
    edited April 2007
    Sweet


    engtaz
    engtaz

    I love how music can brighten up a bad day.
    · Share on FacebookShare on Twitter
  • Ricardo
    Ricardo Posts: 10,636
    edited April 2007
    Those stands look great. And yes, those are the Peerles tweeters.
    _________________________________________________
    ***\\\\\........................... My Audio Journey ............................./////***

    2008 & 2010 Football Pool WINNER
    SOPA
    Thank God for different opinions. Imagine the world if we all wanted the same woman
    · Share on FacebookShare on Twitter
  • G-2
    G-2 Posts: 533
    edited April 2007
    Congrats on those beauty's, we grew up listening to my dad's 7's. Those are beautiful and look great but the sound, we suspect, you'll find most pleasing!! Enjoy!!

    BTW NICE job on those stands; gorgeous and functional!!
    Home Theater
    Chane     A3rx-c's, A2rc-c, A1rx-c's|Miller & Kreisel V-125's|Sony XBR65X810C 65" 4K LED TV|
    Earthquake Cinenova Grande-5|Pioneer Elite - VSX-84TXSi-AVR|TRIPPLITE LCR2400|
    Ultrasonic Amp Stand|Blue Jeans,Audioquest,Monster Cables|

    2 - Channel
    Polk     RTA 12c's w/RDO194 TWEETS, clarity ESA caps mills resistors (full mod)|Turntable|
    Anthem MCA 2|Acurus Act 3 Pre Pro|Parasound P/Ph 100|Pioneer Elite N-30|Adcom GDA600|
    Premier Rack|Blue Jeans,Audioquest,Monster Cables|
    · Share on FacebookShare on Twitter
  • ANWKLO
    ANWKLO Posts: 173
    edited April 2007
    May I know the height of the stands please?
    · Share on FacebookShare on Twitter
  • jakelm
    jakelm Posts: 4,081
    edited April 2007
    Just wait till after you upgrade the crossover. I rebuilt my crossovers over the weekend...Absolutly fantastic sound.
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
    · Share on FacebookShare on Twitter
  • Jonesy
    Jonesy Posts: 189
    edited April 2007
    Upgraded crossover? Oh man, I thought I was done :eek: I suppose while I'm modding the Toshiba 3950 I can re-work the crossover. Do you happen to have a parts list?

    ANWKLO, the stands are 16" high exclusive of the [URL="http://www.madisound.com/cgi-bin/index.cgi?cart_id=%
    · Share on FacebookShare on Twitter
  • jakelm
    jakelm Posts: 4,081
    edited April 2007
    Only upgrade if you feel you need to. I did and it made a great improvement.
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
    · Share on FacebookShare on Twitter
  • Jonesy
    Jonesy Posts: 189
    edited April 2007
    Allright, I just finished reading your crossover thread. What did you decide on for the mystery cap?
    · Share on FacebookShare on Twitter
  • jakelm
    jakelm Posts: 4,081
    edited April 2007
    Solen caps and Mills resistors all from PE
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
    · Share on FacebookShare on Twitter
  • Jonesy
    Jonesy Posts: 189
    edited April 2007
    Thanks.......and the value of the one you couldn't determine?
    · Share on FacebookShare on Twitter
  • jakelm
    jakelm Posts: 4,081
    edited April 2007
    34uf.

    2 = 4.5ohm Mills resistors
    2 = 12uf Solen caps
    2 = 33uf (they dont have 34uf) Solen caps
    and silver solder.
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
    · Share on FacebookShare on Twitter
  • jakelm
    jakelm Posts: 4,081
    edited April 2007
    I have a breif description and pics here. Post #8

    http://www.polkaudio.com/forums/showthread.php?t=51131
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
    · Share on FacebookShare on Twitter
  • heiney9
    heiney9 Posts: 25,204
    edited April 2007
    jakelm wrote:
    34uf.

    2 = 4.5ohm Mills resistors
    2 = 12uf Solen caps
    2 = 33uf (they dont have 34uf) Solen caps
    and silver solder.

    I'll be doing my 5b's on Wed. this week. The 33uF will work fine; it's well within the 10% tolerance of the original 34uF electrolytic. The Solens are 2% if I remember correctly. With shipping from Parts Express < $50 (sans the silver solder).

    Do it, it will work wonders. Wednesday can't get here fast enough for me :) .

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
    · Share on FacebookShare on Twitter
  • Jonesy
    Jonesy Posts: 189
    edited April 2007
    Do you think this would work instead of the 33uf?
    · Share on FacebookShare on Twitter
  • heiney9
    heiney9 Posts: 25,204
    edited April 2007
    Jonesy wrote:
    Do you think this would work instead of the 33uf?

    Yep. The only reason I didn't buy from Madisound was because I thought they don't carry Mills resistors.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
    · Share on FacebookShare on Twitter
  • Jonesy
    Jonesy Posts: 189
    edited April 2007
    They don't. What's the prevailing opinion on these. Madisound is convienent for me as I don't have to wait for/pay for shipping.

    wrong link, sorry. Try this.
    · Share on FacebookShare on Twitter
  • engtaz
    engtaz Posts: 7,664
    edited May 2008
    Did you finish the upgrade and if so how does it sound.

    engtaz
    engtaz

    I love how music can brighten up a bad day.
    · Share on FacebookShare on Twitter
  • Jonesy
    Jonesy Posts: 189
    edited May 2008
    Haven't even touched them. They have been bangin away just fine stock. However, I have just completed my first re-cap on a pair or EPI 150's (very simple one cap design) and am now getting more comfortable with a soldering iron. My project list is now growing. Next up is a pair of Snell JII's, then maybe a pair of KEF 304/2's. I'm also currently looking to re-edge a pair of AR48s's.

    The 7B's have become the measuring stick for everything else that comes in. They do everything well. The JII's are great with Jazz and the like, the KEF's rock like nobody's business, etc..., but the Polk's can handle all comers very well. I should do the re-cap as they could only get better. They will most likely get done after the Snells.
    · Share on FacebookShare on Twitter
  • doctor r
    doctor r Posts: 837
    edited May 2008
    You will really be amazed at the improvement once you decide to tackle the crossover upgrade. Last summer I followed the postings on this forum (some listed above) and reworked a set of 7Bs that I have owned since 1978. I always loved the speakers but the improvement was noticible and substantial. Details that I previously thought were very good are now much better. I am not an electronics wizard and have not done much soldering since I built dynaco kits 30 years ago, but I was able to finish the crossovers in about 4 hours. It is a great project that your will reap the rewards from on a daily basis
    integrated w/DAC module Gryphon Diablo 300
    server Wolf Alpha 3SX
    phono pre Dynamic Sounds Associates Phono II
    turntable/tonearms Origin Live Sovereign Mk3 dual arm, Origin Live Enterprise Mk4, Origin Live Illustrious Mk3c
    cartridges Miyajima Madake, Ortofon Windfeld Ti, Ortofon
    speakers Rockport Mira II
    cables Synergistic Research Cables, Gryphon VPI XLR, Sablon 2020 USB
    rack Adona Eris 6dw
    ultrasonic cleaner Degritter
    · Share on FacebookShare on Twitter